Datolite xls; Trutenbek, St. Andreasberg, Harz, Germany; Min; unique piece
Datolite crystals from Trutenbek, St. Andreasberg, Harz, Germany – miniature specimen as unique piece
This miniature specimen features Datolite crystals from Trutenbek near St. Andreasberg, Harz, Germany. The piece is covered with numerous well visible crystals, ranging from clear to slightly greenish tones, densely developed on the matrix. The crystals show typical blocky to tabular forms with a mostly matte to slightly lustrous surface.
The Datolite crystals are clearly developed and give the specimen a lively crystalline structure with appealing transparency. The delicate green coloration in particular enhances the aesthetic quality of this piece and makes it an attractive collector’s specimen from the Harz region.
Geology & Origin
Datolite is a calcium borosilicate that commonly forms in hydrothermal veins and in contact zones of mafic to ultramafic rocks. It develops at relatively low temperatures and is often associated with minerals such as Prehnite, Calcite or Quartz.
The Harz Mountains are one of the classic mineral regions in Germany. The deposits around St. Andreasberg are especially known for their diversity of hydrothermal minerals and have produced high quality collector specimens for centuries.
This table is for general information and orientation, although the sizes of the stones may vary. In addition, this specification is handled differently from region to region.
| Sizes | Description | approx. Sizes in mm/cm | approx. Sizes in INCH | |
| Capsule | Capsule | 0.1–0.5 mm in a transparent hard capsule (approx. 1 cm) | capsule contents 0.1–0.5 mm | capsule contents 0.004–0.02 in |
| TN/mm | Micromount (TN = Thumbnail) | everything fitting in a TN Perky box or a MM box of approx. 1 in | approx. 0.5–2.5 cm | max. 1 in |
| Min | Miniature specimen | will not fit a TN or MM box anymore | approx. 2.5–5 cm | approx. 0.2–1.0 in |
| Scab | small cabinet specimen | approx. one-third to half a hand size | approx. 5–9 cm | approx. 1.0–2.0 in |
| Cab | cabinet specimen | full hand size | approx. 9–15 cm | approx. 2.0–3.5 in |
| large Cab | large cabinet specimen | approx. two hand sizes | approx. 15–30 cm | approx. 3.5–6.0 in |
| very large Cab | very large cabinet specimen | everything larger, no upper limit |
Abbreviations commonly used in mineralogy.
| Abbreviation | Meaning |
| xl | single crystal, possible with matrix |
| xls | noticeable crystals |
| (xl) | embedded or damaged |
| (xls) | embedded or damaged |
| MASS | massive and/or amorphous pieces |
| TYP | type locality of the original description |
| SWUV | shortwave-UV-reaction |
| UV | ultraviolet reaction |
| SC | self-collected |
| U | unique (single unique piece) |
Usage Instructions
This product is ideal as a collector's item, decorative element, teaching material, or for scientific and exhibition purposes.
Legal Notices
Safety
We accept no liability for damages resulting from improper and/or non-recommended use. Please carefully assess the suitability of the product before any alternative use.
Responsible Provider
Mikon Mineralienkontor GmbH
Steinslieth 11
D-37130 Gleichen OT Klein Lengden
Email: info@mikon-online.com
| shipment-weight, NOT netto weight (kg) | 0.080000 |
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